A non-slip PVC floor and its production process

Abstract

The present invention relates to the technical field of PVC floors, and discloses a non-slip PVC floor and its production process. The PVC floor comprises the following raw materials: PVC resin, composite wear-resistant filler, flame-retardant modification component, calcium carbonate, plasticizer, stabilizer, and polyethylene wax; wherein, the composite wear-resistant filler is nano-zirconia grafted with bis-hydroxy-terminated polyphenylene ether on the surface, which significantly improves the wear resistance of the PVC floor; the flame-retardant modification component is an intumescent flame retardant integrating carbon source, acid source and gas source, which can make the prepared PVC floor exhibit excellent flame retardant effect. By preparing a PVC floor with embossed patterns, the anti-slip performance of the PVC floor is improved, which can meet the use requirements of the PVC floor in various environments, effectively extends the service life of the PVC floor, and broadens the application field of the PVC floor.

Description

Technical Field

[0001] The invention relates to the technical field of PVC floors, and in particular to an anti-slip PVC floor and a production process thereof. Background Art

[0002] At present, floors mainly include ceramic tile floors, wooden floors and plastic floors. Among them, plastic floors are a new type of lightweight floor decoration material, also known as "lightweight floor materials", which are widely used in various places, including schools, hospitals, factories, supermarkets, shopping malls, stadiums, etc. PVC is one of the most common materials in plastic floors. PVC (polyvinyl chloride) floors are made of PVC resin as the main raw material and various additives and auxiliary materials. Because of its advantages such as no formaldehyde, no radiation, low maintenance cost, easy installation, safe and environmentally friendly use process, it has replaced ceramic tile floors and wooden floors in many construction fields and has become one of the preferred materials for floors.

[0003] With the continuous advancement of science and technology and the continuous expansion of application fields, ordinary PVC floors can no longer meet the diversified and high value-added market demands. Therefore, giving PVC floors more functionality has become an important trend in the development of the industry. In practical applications, anti-slip and wear-resistant properties are important indicators of PVC floors. Ordinary PVC floors often have insufficient anti-slip properties, which increases the risk of pedestrians slipping and getting injured when walking on the floor. In addition, the floor is easily worn during use, resulting in damage, scratches and gradual erosion on its surface, which not only affects the appearance of the floor, but also shortens its service life. Secondly, because PVC floors contain flammable plasticizers, the oxygen index of PVC floors is reduced, resulting in a decrease in their flame retardant properties, thereby increasing the risk of fire and posing a potential threat to people's lives and property safety.

[0004] The emergence of the above problems limits the application field of PVC flooring. In the prior art, in order to improve the performance of PVC flooring, functional additives are often used to fill and modify the matrix. For example, the invention patent with the announcement number CN114736469B discloses a fire-retardant automobile flooring. The invention effectively improves the wear resistance and flame retardancy of the automobile flooring by adding attapulgite / PVC flooring recycled materials to the matrix. Therefore, high-performance PVC flooring can be prepared by adding optimized components in the preparation process of PVC flooring. Summary of the invention

[0005] In order to solve the problems mentioned in the background technology, the object of the present invention is to provide an anti-slip PVC floor and a production process thereof.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A non-slip PVC floor comprises the following raw materials in parts by weight: 50-70 parts of PVC resin, 4-6 parts of composite wear-resistant filler, 5-7 parts of flame-retardant modified components, 10-20 parts of calcium carbonate, 10-15 parts of plasticizer, 2-4 parts of stabilizer and 1-3 parts of polyethylene wax.

[0008] Furthermore, the preparation method of the composite wear-resistant filler comprises the following steps:

[0009] S1: Ultrasonic dispersion of nano zirconium oxide in a toluene solution to form a uniform dispersion, and under continuous nitrogen conditions, halogenated acyl halide and acid binding agent are added to the dispersion. After addition, stirring is performed at room temperature for 3 to 7 hours, and solid materials are separated by filtration. After washing and drying, modified nano zirconium oxide is obtained.

[0010] S2: Add modified nano zirconium oxide to the N-methylpyrrolidone solution, stir mechanically for uniformity, pass nitrogen, expel air, then add double-terminated hydroxyl polyphenylene ether and sodium hydroxide solution to the system, mix well, increase the system temperature to 70-80°C, keep warm and stir for 4-6 hours, filter the material, collect the product, wash the product, and dry it to obtain a composite wear-resistant filler.

[0011] Furthermore, in step S1, the halogenated acyl halide is any one of chloroacetyl chloride, 4-bromobutyryl chloride or 3-chloropropionyl chloride.

[0012] Furthermore, in step S1, the acid binding agent is any one of pyridine or triethylamine.

[0013] Furthermore, in step S2, the number average molecular weight of the double-terminated hydroxyl polyphenylene ether is 500 to 4000.

[0014] Furthermore, in step S2, the mass fraction of the sodium hydroxide solution is 10% to 40%.

[0015] It can be inferred that the principle of the above scheme is: in step S1, the surface of the nano zirconium oxide contains hydroxyl groups, which can react with the acyl halide groups in the halogenated acyl halide under the action of the acid binding agent, thereby introducing halogen functional groups on the surface of the nano zirconium oxide to obtain modified nano zirconium oxide; in step S2, sodium hydroxide solution is used as a catalyst to catalyze the reaction of the halogen functional groups on the surface of the modified nano zirconium oxide with the hydroxyl groups in the double-terminated hydroxyl polyphenylene ether structure, thereby realizing surface modification of the nano zirconium oxide and obtaining a composite wear-resistant filler.

[0016] Furthermore, the preparation method of the flame retardant modified component comprises the following steps:

[0017] SS1: Add bacterial cellulose and N,N-dimethylformamide to a nitrogen-protected reactor, stir evenly, then continue to add 4-amino-5,6-dichloropyrimidine and sodium hydroxide solution to the reactor, and after the addition, turn on the heating until the temperature in the reactor reaches 70-80°C, keep the temperature and stir for 3-6 hours, wait for the material to cool naturally, and then discharge the material to obtain modified bacterial cellulose;

[0018] SS2: Under nitrogen protection, the modified bacterial cellulose and dimethyl sulfoxide solution are stirred and mixed to form a uniform liquid material, pyrophosphoryl chloride and pyridine are added to the liquid material, and after the addition, the mixture is stirred at room temperature for 4 to 6 hours, and the solvent is removed by reduced pressure distillation to obtain a flame retardant modified component.

[0019] Furthermore, in step SS1, the mass ratio of the bacterial cellulose to 4-amino-5,6-dichloropyrimidine is 1:0.1-0.4.

[0020] It can be inferred that the principle of the above scheme is: in step SS1, under the action of sodium hydroxide solution, the active hydroxyl group in the bacterial cellulose structure undergoes a substitution reaction with the halogen functional group in the 4-amino-5,6-dichloropyrimidine structure, thereby obtaining a modified bacterial cellulose containing an amino group in the structure; in step SS2, the active phosphorus oxychloride group in the pyrophosphorus oxychloride structure undergoes an amidation condensation reaction with the amino group in the modified bacterial cellulose structure under the action of pyridine, thereby introducing pyrophosphorus oxychloride into the structure of the bacterial cellulose through a chemical bond connection to obtain a flame retardant modified component.

[0021] Furthermore, the plasticizer is any one of dibutyl phthalate, dioctyl phthalate or diisodecyl phthalate; and the stabilizer is any one of calcium zinc stabilizer, barium zinc composite stabilizer or potassium zinc composite stabilizer.

[0022] A production process of anti-slip PVC flooring, comprising the following steps:

[0023] The first step: adding PVC resin, composite wear-resistant filler, flame retardant modified component, calcium carbonate, plasticizer, stabilizer and polyethylene wax into a high-speed mixer, stirring and mixing at a stirring rate of 500 to 700 r / min for 20 to 40 minutes to obtain a premix;

[0024] Step 2: Place the premix obtained in the first step in a double-roll plasticator for plastication into sheets, set the front roll temperature to 160-170°C, the rear roll temperature to 140-180°C, and the mixing time to 20-40 minutes to obtain a sheet;

[0025] Step 3: Add the sheet to the pressure forming machine, press it at 130-150°C and 5-7MPa, keep the pressure for 40-50min, then cool it to 60-80°C, transfer it to the cooling plate and press it to 8-12MPa, cold press it for 5-15min, and get the semi-finished PVC floor;

[0026] Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

[0027] Beneficial effects of the present invention:

[0028] (1) The present invention significantly improves the anti-slip performance of the PVC floor by preparing a PVC floor with an embossed pattern, and by adding the prepared composite wear-resistant filler and flame-retardant modified component to the preparation process of the PVC floor, the prepared PVC floor has an oxygen index of up to 34.5%, a friction coefficient of up to 0.09, and a hardness of up to 98. It has excellent wear resistance and flame retardancy, can meet the use requirements of the PVC floor in various environments, effectively prolongs the service life of the PVC floor, and broadens the application field of the PVC floor.

[0029] (2) The composite wear-resistant filler prepared by the present invention is nano-zirconia with double-terminated hydroxyl polyphenylene ether grafted on the surface. By organically modifying the surface of the nano-zirconia, the interface performance between the nano-zirconia and the matrix is ​​improved, and the nano-zirconia can be relatively evenly dispersed in the PVC matrix, avoiding the phase separation phenomenon between the two phases due to interface problems. The excellent wear resistance of the nano-zirconia can significantly improve the wear resistance of the PVC floor, avoiding the phenomenon of surface damage, scratches and gradual erosion due to wear during use of the floor. In addition, by introducing rigid benzene rings on the surface of the nano-zirconia, the hardness of the PVC floor is improved, the wear resistance of the PVC floor is further improved, the service life of the PVC floor is effectively extended, and the application field of the PVC floor is broadened.

[0030] (3) The flame retardant modified component prepared by the present invention is an intumescent flame retardant that integrates a carbon source, an acid source, and a gas source. It has a good flame retardant effect on PVC flooring. Its special structure promotes the formation of a stable carbon layer, blocks the diffusion of heat and gas, effectively inhibits the combustion and decomposition of PVC flooring, and releases NH 3 and H 2 O and other non-flammable gases can dilute the surrounding oxygen concentration and have a certain blowing out effect on the flame. By adding a small amount of flame retardant modified components, the prepared PVC floor can show excellent flame retardant effect, thereby reducing the potential threat to people's lives and property safety when a fire occurs.

[0031] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0033] Figure 1 This is an infrared spectrum test chart of the composite wear-resistant filler prepared by the present invention.

[0034] Figure 2 The infrared spectrum test graphs of the bacterial cellulose, modified bacterial cellulose and flame retardant modified components prepared in the present invention are shown. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The composite wear-resistant fillers and flame-retardant modified components in the examples and comparative examples of the present invention are prepared by the following method:

[0037] 1. Preparation of composite wear-resistant filler

[0038] S1: ultrasonically disperse 6 g of nano-zirconia in a toluene solution to form a uniform dispersion, and under continuous nitrogen conditions, add 1.2 g of chloroacetyl chloride and 0.05 g of pyridine to the dispersion. After the addition, stir at room temperature for 5 h, filter and separate the solid material, wash and dry it to obtain modified nano-zirconia;

[0039] S2: Add 5g of modified nano-zirconium oxide to the N-methylpyrrolidone solution, stir mechanically, pass nitrogen, and exhaust the air. Then, add 3.8g of double-terminated hydroxyl polyphenylene ether with a number average molecular weight of 3000 and 0.1g of 20% sodium hydroxide solution into the system, mix well, increase the system temperature to 75°C, keep stirring for 5h, filter the material, collect the product, wash the product, and dry it to obtain a composite wear-resistant filler.

[0040] The composite wear-resistant filler was tested by infrared using FTIR-850 Fourier transform infrared spectrometer (Tianjin Gangdong Technology Development Co., Ltd.). Figure 1 As shown in the figure, the analysis shows that in the infrared spectrum of the composite wear-resistant filler, 1751cm -1 The absorption peak of the ester group C=O appears at 3040 cm -1 The absorption peak of the carbon-hydrogen bond in the benzene ring appears at 750cm -1 The absorption peak of Zr-O-Zr bond appears at 1041cm -1 The absorption peak of ether bond COC appears at

[0041] 2. Preparation of flame retardant modified components

[0042] SS1: Add 5 g of bacterial cellulose and N,N-dimethylformamide to a nitrogen-protected reactor, stir evenly, then continue to add 1.2 g of 4-amino-5,6-dichloropyrimidine and 0.08 g of 20% sodium hydroxide solution to the reactor. After the addition is complete, turn on the heating until the temperature in the reactor reaches 75°C. After keeping warm and stirring for 4 hours, wait for the material to cool naturally, discharge the material, and obtain modified bacterial cellulose;

[0043] SS2: Under nitrogen protection, 5 g of modified bacterial cellulose and dimethyl sulfoxide solution were stirred and mixed to form a uniform liquid. 1.6 g of pyrophosphoryl chloride and 0.1 g of pyridine were added to the liquid. After the addition, the mixture was stirred at room temperature for 5 h. The solvent was removed by reduced pressure distillation to obtain a flame retardant modified component.

[0044] The infrared tests of bacterial cellulose, modified bacterial cellulose and flame retardant modified components were carried out using FTIR-850 Fourier transform infrared spectrometer (Tianjin Gangdong Technology Development Co., Ltd.). Figure 2 As shown in the figure, the analysis shows that in the infrared spectrum of bacterial cellulose, 3375cm -1 The absorption peak of hydroxyl group OH appears at 1050cm -1 The absorption peak of ether bond COC appears at 1250cm -1 The absorption peak of CN appears at 1629cm -1 The absorption peak of C=N appears at 3410cm -1 The absorption peak of amino group NH appears at 1035cm -1 The absorption peak of ether-linked COC appears at 1640 cm -1 The absorption peak of C=N appears at 1266cm -1 The absorption peak of CN appears at 1020cm -1 The absorption peak of ether bond COC appears at 1275 cm -1 The absorption peak of P=O appears at 1665cm -1The absorption peak of NP appears at 3395cm -1 The absorption peak of NH appears at

[0045] Example 1

[0046] Preparation of PVC floor

[0047] Step 1: Add 50g of PVC resin, 4g of composite wear-resistant filler, 5g of flame retardant modified component, 10g of calcium carbonate, 10g of dibutyl phthalate, 2g of calcium zinc stabilizer, and 1g of polyethylene wax into a high-speed mixer, and stir and mix at a stirring rate of 500r / min for 20min to obtain a premix;

[0048] Step 2: Place the premix obtained in the first step in a double-roll mill for plastication into sheets, set the front roll temperature to 160°C, the rear roll temperature to 140°C, and the mixing time to 20 minutes to obtain a sheet;

[0049] Step 3: Add the sheet to the pressure forming machine, press it at 130°C and 5MPa, keep the pressure for 40 minutes, then cool it to 60°C, transfer it to the cooling plate and press it to 8MPa, cold press it for 5 minutes, and get the semi-finished PVC floor;

[0050] Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

[0051] Example 2

[0052] Preparation of PVC floor

[0053] Step 1: Add 60g of PVC resin, 5.5g of composite wear-resistant filler, 6.5g of flame retardant modified component, 15g of calcium carbonate, 12g of dibutyl phthalate, 3g of calcium zinc stabilizer, and 2g of polyethylene wax into a high-speed mixer, and stir and mix at a stirring rate of 600r / min for 30min to obtain a premix;

[0054] Step 2: The premix obtained in the first step is placed in a double-roller plasticator for plastication into sheets, the front roll temperature is set to 165°C, the rear roll temperature is set to 160°C, and the mixing time is 30 minutes to obtain a sheet;

[0055] Step 3: Add the sheet to the pressure forming machine, press it at 140°C and 6MPa, keep the pressure for 45 minutes, then cool it to 70°C, transfer it to the cooling plate and press it to 10MPa, cold press it for 10 minutes, and get the semi-finished PVC floor;

[0056] Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

[0057] Example 3

[0058] Preparation of PVC floor

[0059] Step 1: Add 70g of PVC resin, 6g of composite wear-resistant filler, 7g of flame retardant modified component, 20g of calcium carbonate, 15g of dibutyl phthalate, 4g of calcium zinc stabilizer, and 3g of polyethylene wax into a high-speed mixer, and stir and mix at a stirring rate of 700r / min for 40min to obtain a premix;

[0060] Step 2: Place the premix obtained in the first step in a double-roll mill for plastication into sheets, set the front roll temperature to 170°C, the rear roll temperature to 180°C, and the mixing time to 40 minutes to obtain a sheet;

[0061] Step 3: Add the sheet to the pressure forming machine, press it at 150°C and 7MPa, keep the pressure for 50 minutes, then cool it to 80°C, transfer it to the cooling plate and press it to 12MPa, cold press it for 15 minutes, and get the semi-finished PVC floor;

[0062] Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

[0063] Comparative Example 1

[0064] Preparation of PVC floor

[0065] Step 1: Add 60g of PVC resin, 5.5g of composite wear-resistant filler, 15g of calcium carbonate, 12g of dibutyl phthalate, 3g of calcium zinc stabilizer, and 2g of polyethylene wax into a high-speed mixer, and stir and mix at a stirring rate of 600r / min for 30min to obtain a premix;

[0066] Step 2: The premix obtained in the first step is placed in a double-roller plasticator for plastication into sheets, the front roll temperature is set to 165°C, the rear roll temperature is set to 160°C, and the mixing time is 30 minutes to obtain a sheet;

[0067] Step 3: Add the sheet to the pressure forming machine, press it at 140°C and 6MPa, keep the pressure for 45 minutes, then cool it to 70°C, transfer it to the cooling plate and press it to 10MPa, cold press it for 10 minutes, and get the semi-finished PVC floor;

[0068] Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

[0069] Comparative Example 2

[0070] Preparation of PVC floor

[0071] Step 1: Add 60g of PVC resin, 6.5g of flame retardant modified component, 15g of calcium carbonate, 12g of dibutyl phthalate, 3g of calcium zinc stabilizer, and 2g of polyethylene wax into a high-speed mixer, and stir and mix at a stirring rate of 600r / min for 30min to obtain a premix;

[0072] Step 2: The premix obtained in the first step is placed in a double-roller plasticator for plastication into sheets, the front roll temperature is set to 165°C, the rear roll temperature is set to 160°C, and the mixing time is 30 minutes to obtain a sheet;

[0073] Step 3: Add the sheet to the pressure forming machine, press it at 140°C and 6MPa, keep the pressure for 45 minutes, then cool it to 70°C, transfer it to the cooling plate and press it to 10MPa, cold press it for 10 minutes, and get the semi-finished PVC floor;

[0074] Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

[0075] Comparative Example 3

[0076] Preparation of PVC floor

[0077] Step 1: Add 60g of PVC resin, 5.5g of nano zirconium oxide, 6.5g of flame retardant modified component, 15g of calcium carbonate, 12g of dibutyl phthalate, 3g of calcium zinc stabilizer, and 2g of polyethylene wax into a high-speed mixer, and stir and mix at a stirring rate of 600r / min for 30min to obtain a premix;

[0078] Step 2: The premix obtained in the first step is placed in a double-roller plasticator for plastication into sheets, the front roll temperature is set to 165°C, the rear roll temperature is set to 160°C, and the mixing time is 30 minutes to obtain a sheet;

[0079] Step 3: Add the sheet to the pressure forming machine, press it at 140°C and 6MPa, keep the pressure for 45 minutes, then cool it to 70°C, transfer it to the cooling plate and press it to 10MPa, cold press it for 10 minutes, and get the semi-finished PVC floor;

[0080] Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

[0081] Comparative Example 4

[0082] Preparation of PVC floor

[0083] Step 1: Add 60g of PVC resin, 15g of calcium carbonate, 12g of dibutyl phthalate, 3g of calcium zinc stabilizer, and 2g of polyethylene wax into a high-speed mixer, and stir and mix at a stirring rate of 600r / min for 30min to obtain a premix;

[0084] Step 2: The premix obtained in the first step is placed in a double-roller plasticator for plastication into sheets, the front roll temperature is set to 165°C, the rear roll temperature is set to 160°C, and the mixing time is 30 minutes to obtain a sheet;

[0085] Step 3: Add the sheet to the pressure forming machine, press it at 140°C and 6MPa, keep the pressure for 45 minutes, then cool it to 70°C, transfer it to the cooling plate and press it to 10MPa, cold press it for 10 minutes, and get the semi-finished PVC floor;

[0086] Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

[0087] Performance testing:

[0088] The PVC floors prepared in Examples 1 to 3 of the present invention and Comparative Examples 1 to 4 were made into test samples that met the specifications. The friction coefficients of the test samples were tested according to GB / T 3960-2016 "Test methods for sliding friction and wear of plastics", and the test was performed using an M-2000 wear tester, with the test load set to 200N and the wear time set to 2h; the oxygen index of the test samples was tested according to GB / T2406.2-2009 "Determination of combustion behavior of plastics by oxygen index method Part 2: Room temperature test"; the hardness of the test samples was tested according to GB / T2411-2008 "Determination of indentation hardness (Shore hardness) of plastics and hard rubber using a hardness tester", and the specific test results are shown in Table 1:

[0089] Table 1 - Performance Test

[0090]

[0091]

[0092] It can be seen from Table 1 that composite wear-resistant fillers and flame-retardant modified components are added to the samples prepared in Examples 1 to 3, and the PVC floor has excellent wear resistance and flame retardant properties; no flame retardant modified components are added to the sample prepared in Comparative Example 1, and the flame retardant performance of the PVC floor is poor compared with the examples; no composite wear-resistant filler is added to the sample prepared in Comparative Example 2, and the wear resistance of the PVC floor is not as good as that of the examples; unmodified nano zirconium oxide is used to replace the composite wear-resistant filler in the sample prepared in Comparative Example 3, and the nano zirconium oxide may agglomerate in the matrix, resulting in a decrease in the wear resistance of the PVC floor; no composite wear-resistant filler and flame retardant modified components are added to the sample prepared in Comparative Example 4, so the performance of the PVC floor is the worst.

[0093] The above contents are merely examples and explanations of the concept of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A non-slip PVC floor, characterized in that: The invention comprises the following raw materials in parts by weight: 50 to 70 parts of PVC resin, 4 to 6 parts of composite wear-resistant filler, 5 to 7 parts of flame retardant modified component, 10 to 20 parts of calcium carbonate, 10 to 15 parts of plasticizer, 2 to 4 parts of stabilizer, and 1 to 3 parts of polyethylene wax; The preparation method of the composite wear-resistant filler comprises the following steps: S1: Ultrasonic dispersion of nano zirconium oxide in a toluene solution to form a uniform dispersion, and under continuous nitrogen conditions, halogenated acyl halide and acid binding agent are added to the dispersion. After addition, stirring is performed at room temperature for 3 to 7 hours, and solid materials are separated by filtration. After washing and drying, modified nano zirconium oxide is obtained. S2: Add modified nano-zirconium oxide to the N-methylpyrrolidone solution, stir mechanically, pass nitrogen, exhaust the air, then add the double-terminated hydroxyl polyphenylene ether and sodium hydroxide solution to the system, mix well, increase the system temperature to 70-80°C, keep stirring for 4-6 hours, filter the material, collect the product, wash the product, and dry it to obtain a composite wear-resistant filler; The preparation method of the flame retardant modified component comprises the following steps: SS1: Add bacterial cellulose and N,N-dimethylformamide to a nitrogen-protected reactor, stir evenly, then continue to add 4-amino-5,6-dichloropyrimidine and sodium hydroxide solution to the reactor, and after the addition, turn on the heating until the temperature in the reactor reaches 70-80°C, keep the temperature and stir for 3-6 hours, wait for the material to cool naturally, and then discharge the material to obtain modified bacterial cellulose; SS2: Under nitrogen protection, the modified bacterial cellulose and dimethyl sulfoxide solution are stirred and mixed to form a uniform liquid material, pyrophosphoryl chloride and pyridine are added to the liquid material, and after the addition, the mixture is stirred at room temperature for 4 to 6 hours, and the solvent is removed by reduced pressure distillation to obtain a flame retardant modified component.

2. The anti-slip PVC floor according to claim 1, characterized in that: In step S1, the halogenated acyl halide is any one of chloroacetyl chloride, 4-bromobutyryl chloride or 3-chloropropionyl chloride.

3. The anti-slip PVC floor according to claim 1, characterized in that: In step S1, the acid binding agent is any one of pyridine or triethylamine.

4. The anti-slip PVC floor according to claim 1, characterized in that: In step S2, the number average molecular weight of the dihydroxy-terminated polyphenylene ether is 500-4000.

5. The anti-slip PVC floor according to claim 1, characterized in that: In step S2, the mass fraction of the sodium hydroxide solution is 10% to 40%.

6. The anti-slip PVC floor according to claim 1, characterized in that: In step SS1, the mass ratio of the bacterial cellulose to 4-amino-5,6-dichloropyrimidine is 1:0.1-0.

4.

7. The anti-slip PVC floor according to claim 1, characterized in that: The plasticizer is any one of dibutyl phthalate, dioctyl phthalate or diisodecyl phthalate; the stabilizer is any one of calcium zinc stabilizer, barium zinc composite stabilizer or potassium zinc composite stabilizer.

8. A production process for the anti-slip PVC floor as claimed in claim 1, characterized in that: The following steps are involved: The first step: adding PVC resin, composite wear-resistant filler, flame retardant modified component, calcium carbonate, plasticizer, stabilizer and polyethylene wax into a high-speed mixer, stirring and mixing at a stirring rate of 500 to 700 r / min for 20 to 40 minutes to obtain a premix; Step 2: Place the premix obtained in the first step in a double-roll plasticator for plastication into sheets, set the front roll temperature to 160-170°C, the rear roll temperature to 140-180°C, and the mixing time to 20-40 minutes to obtain a sheet; Step 3: Add the sheet to the pressure forming machine, press it at 130-150°C and 5-7MPa, keep the pressure for 40-50min, then cool it to 60-80°C, transfer it to the cooling plate and press it to 8-12MPa, cold press it for 5-15min, and get the semi-finished PVC floor; Step 4: Use a film printer to print patterns on the semi-finished PVC floor, and then use an embossing machine to perform deep embossing on the upper and lower surfaces to obtain a floor with an embossed pattern, and then cut and sample to obtain the PVC floor.

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